FR2880417A1 - INTEGRATED FILTER OIL COOLER - Google Patents

Abstract

An integrated filter oil cooler includes first and second elongate tubular collectors (10, 12) spaced apart and having tube slots that face each other and are aligned with each other. Elongated and flattened tubes (14) have their ends sealed in these slots. Fines (18) extend between the tubes (14) in thermal conduction relationship with them. A filter housing (28) is mounted on the cooler and encloses an oil filter element (40 ).Application area: oil coolers for vehicles, etc.

Description

The invention relates to heat exchangers, and more particularly

  heat exchangers comprising an integrated filter for filtering one of the heat exchange fluids circulating in a system comprising

the heat exchanger.

  Many forms of apparatus using oil for lubrication or hydraulic fluid to operate hydraulic motors or the like (oil and hydraulic fluid hereinafter referred to as oil) utilize heat exchangers known as oil coolers for cooling the oil as it circulates in the system for which it is used. A very common example is an oil cooler used in applications to vehicles.

  The use of oil coolers makes it possible to maintain the oil at a temperature lower than that at which a substantial degradation of its desired qualities occurs, thus prolonging the life of the equipment in which the oil is used.

  It is of course very desirable that the oil be kept free of impurities which could promote accelerated wear of the material in which the oil is used, and it was generally common to include a separate oil filter in the system for removal by filtering small particles and other oil as it circulates through the system.

  A particular difficulty posed by systems of this type lies in the fact that they are assembled in relatively uncontrolled conditions and, because of the multiplicity of parts, this can lead to leakage at locations where various components are connected between them.

  Another difficulty lies in the fact that, when separate components are assembled together, they usually occupy, then, more volume than they would occupy if some of the constituents were built into an integrated block. This is a particular problem in applications to vehicles where the space in the engine compartment of a vehicle, where an oil cooler is usually placed, is of utmost importance.

  Yet another problem with prior art systems utilizing multiple constituents is that, because of the need for more connections than would be necessary if some of the components were integrated with one another, there is a greater risk. incorrect assembly.

  The invention aims to solve one or more of the above problems.

  The main object of the invention is to provide a new and improved oil cooler with integrated filter.

  Another object of the invention is to provide such an integrated filter oil cooler, which can be manufactured under the highly controlled conditions specific to the manufacture of heat exchangers to thereby minimize or eliminate the risk of leakage at the connections between the oil filter and oil cooler, and provide a compact package that is entirely suitable for use in applications to vehicles as well as providing an assembly that reduces the possibilities of incorrect mounting by eliminating a large number of connection points through an integrated construction.

  Another object of the invention is to provide an integrated oil cooler / filter assembly of various different configurations to provide various variants from which one can choose the one best suited for a specific application.

  It is also an object of the invention to provide an integrated oil cooler / filter assembly in which only a minor portion of the circulating oil stream passes into a filter, the remaining portion passing through the oil cooler so that even in the case of a complete shutter of the filter, a substantial quantity of oil nevertheless circulates in the system to prevent a catastrophic failure thereof.

  In general, an exemplary embodiment of the invention achieves at least one of the above objects using an integrated filter oil cooler, which includes elongate first and second tubular collectors. , arranged parallel to each other and at a distance from each other. Tube slots are provided in each of the manifolds, the tube slots of the first manifold being facing the tube slots of the second manifold and aligned therewith. Elongated tubes have their ends located in tube slots aligned with each other in the first and second manifolds and are sealed therein and extend between the manifolds to establish fluid communication therebetween. Fines extend at least between adjacent tubes and are in thermal conduction relationship with them. An oil inlet is provided to one of the collectors. An oil outlet is also provided from one of the collectors. The manifolds, fins and tubes define an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet. A filter housing is mounted on the oil cooler and an oil filter element is placed inside the filter housing. An inlet is provided to the filter housing and is in fluid communication with the oil inlet for the oil cooler. An outlet of the filter housing is provided for supplying filtered oil to be combined with oil flowing in or out of the oil cooling flow path. A flow throttle is placed downstream of the oil inlet to cause a major substantial portion of the oil introduced into the oil inlet to bypass the filter housing and to flow substantially directly into the path oil cooling flow, only a small minor portion of the oil introduced into the oil inlet flowing through the oil filter element.

  In a highly preferred embodiment, the filter housing is mounted on one of the manifolds such as, for example, the first manifold. In one embodiment, the filter housing is mounted in an end-to-end arrangement on the first manifold while in another embodiment the filter housing is mounted in a generally parallel side-by-side arrangement on the first manifold. first collector. In yet another embodiment, the filter housing is mounted on both collectors and extends parallel to the tubes.

  In one aspect, the oil inlet is an orifice in the first manifold, and a conduit connects the first manifold to the inlet of the filter housing.

  The oil cooling flow passage may be a single passage or may consist of multiple passages if desired.

  In a single-pass oil cooler, a separate conduit can connect the oil outlet or the oil coolant flow path to the outlet of the filter housing while, in multi-pass configurations, the inputs and the outlets of the oil cooling flow paths can be connected directly to the inlet and outlet of the filter housing or can be connected thereto by conduits.

  According to one aspect of the invention, there is provided an integrated filter oil cooler comprising an oil inlet, an oil outlet, first and second elongated tubular collectors arranged parallel to each other and at a distance from one another, tube slots in each of the collectors, the tube slots of the first collector being facing the tube slots of the second collector and aligned therewith, elongated tubes having their ends and some aligned, tube slots in and sealed between the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween, and fins extending at least between adjacent tubes and in heat conduction relationship therewith . The manifolds, fins and tubes define an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet. The integrated filter oil cooler further includes a filter housing mounted on the oil cooler and defining an oil filtering flow path between the oil inlet and the oil outlet, an element with an oil filter in the housing within the oil filtering flow path, and at least one flow throttle downstream of the oil inlet for delivering a substantially major portion of the oil introduced into the oil inlet to bypass the filter housing and to flow substantially directly into the oil cooling flow path, only a small minor portion of the oil introduced into the oil inlet. oil flowing through the oil filter element.

  In one aspect, the filter housing is mounted in a generally parallel arrangement with the tubes. In another aspect, the filter housing is mounted on the two manifolds and / or on a component located in the oil cooler, extending between the manifolds.

  In one aspect, the filter housing includes a chamber for receiving the oil filter element and an oil return passage extending parallel to the chamber between the oil filtration flow path and the outlet. oil.

  According to one aspect, the filter housing comprises an extruded aluminum part, and the oil return passage and the chamber for receiving the oil filter element are formed in the extruded aluminum part.

  In one aspect, a tube extends between a downstream opening in the filter housing and a downstream opening in one of the manifolds, and another tube extends from the oil inlet to filter housing to drive the small minor portion of oil.

  In one aspect, the filter housing is mounted to the oil cooler component extending between the manifolds, and the component includes a side member extending parallel to the tubes.

  In one aspect, the filter housing is mounted directly on each of the manifolds. In another aspect, an open end of one of the manifolds is connected directly to an opening of the filter housing, and an open end of the other of the manifolds is connected directly to another opening of the filter housing.

  In one aspect, the or each flow restriction includes an orifice in close proximity to a downstream end of the filter housing.

  In accordance with one aspect, the or each constriction includes at least one orifice located adjacent an upstream end of the filter housing.

  In one aspect, the or each flow restriction includes at least one port located adjacent a downstream end of the filter housing and at least one port located adjacent an upstream end of the filter housing. filter housing.

  According to one aspect of the invention, there is provided an integrated filter oil cooler which comprises an oil inlet, an oil outlet, first and second elongate tubular collectors arranged parallel to each other and at a distance from each other, tube slots in each of the manifolds, tube slots of the first manifold facing the tube slots of the second manifold and being aligned therewith, elongated tubes having their ends in certain , aligned with, and sealed to, the tube slots of the first and second manifolds, the tubes extending between the manifolds for establishing fluid communication therebetween, and fins extending at least between adjacent tubes and in connection with each other; thermal conduction with them. The manifolds, fins and tubes define an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet. The integrated filter oil cooler further includes a filter housing mounted on the oil cooler, an oil filter member disposed within the filter housing, and at least one flow restrictor in the filter housing. The filter housing defines an oil filtering flow path between the oil inlet and at least one of the first and second manifolds, and an oil filter bypassing the flow path between the oil inlet and the oil inlet. oil and the at least one of the first and second collectors. The oil filter element is placed in the oil filtration flow path. The or each flow throttling element causes a substantial major portion of the oil introduced into the oil inlet to bypass the oil filter element by flowing through the bypass flow path of the filter. to oil, only a small minor portion of the oil introduced into the oil inlet flowing through the oil filter element through the oil filtration flow path.

  In one aspect, the or each flow restriction member comprises an orifice plate having at least one oil adjusting orifice in the flow path bypassing the oil filter. In another aspect, the orifice plate is located downstream of the oil filter element.

  The invention includes various novel means for mounting the filter housing to an oil cooler manifold, various novel support structures for positioning a filter within the filter housing, and an improved closure for the filter housing.

  The invention will be described in more detail with reference to the accompanying drawings by way of non-limitative examples and in which: FIG. 1 is a somewhat diagrammatic perspective view of an oil cooler / filter assembly on a single single passage, according to the invention; Figure 2 is a similar view, but showing a one-pass construction variant; Fig. 3 is a view similar to Figs. 1 and 2, but showing an embodiment of the invention in several passages; FIG. 4 is an enlarged fragmentary sectional view showing a connection between the outlet of the oil cooling flow path and the filter housing outlet used with the embodiment illustrated in FIG. a somewhat modified form, with the embodiment illustrated in Figure 5; Fig. 5 is a view similar to Figs. 1 to 3, but showing another embodiment of an oil cooler / multi-pass filter assembly; Fig. 6 is an exploded partial view on an enlarged scale showing a somewhat schematic representation of the connection of the outlet of the filter housing to the exit of the oil cooling flow path; Fig. 7 is a perspective view of another embodiment with multiple passages; Figure 8 is a perspective view of another multi-pass modified embodiment using two filter housings; Fig. 9 is a partial perspective view of a manifold on which a filter housing is mounted using a preferred type of mounting means and further illustrating a preferred closure for the filter housing; Fig. 10 is an enlarged partial perspective view of the components shown in Fig. 9, shown in exploded form; Figure 11 is a vertical section of a manifold and the filter housing of Embodiment 15 illustrated in Figure 9; Fig. 12 is a partial plan view of the embodiment of Fig. 9; Fig. 13 is a partial vertical sectional view taken along line 13-13 of Fig. 12; Figure 14 is a front view of yet another embodiment of an oil cooler / filter assembly according to the invention, some parts being shown in section; Fig. 15 is a partial enlarged perspective view, with parts shown in section, of part of the structure of the embodiment shown in Fig. 14; Fig. 16 is a partial vertical sectional view of an alternate embodiment of the mounting and fluid connections between the filter and a manifold of the embodiment shown in Fig. 14; Fig. 17 is a partially cutaway partial perspective view of a filter element seat construction form which may be used in the practice of the invention; Fig. 18 is a view similar to Fig. 17 but showing a modified embodiment of the seat structure for the filter; Fig. 19 is a view similar to Figs. 17 and 18, but showing yet another modified embodiment of the seat structure for the filter; Fig. 20 is a view similar to Figs. 17 to 19, but showing yet another embodiment of the seat construction for the filter; Fig. 21 is a perspective view of another integrated filter oil cooler embodying the present invention; Fig. 22 is a perspective view of another integrated filter oil cooler embodying the present invention; Fig. 23 is a perspective view, with certain components only partially shown, of another oil cooler still having an integrated filter embodying the present invention; Fig. 24 is a view along the line 24-24 of Fig. 23; Fig. 25 is a perspective view of yet another integrated filter oil cooler embodying the present invention; Fig. 26 is a view similar to that of Fig. 24 of the embodiment shown in Fig. 25; Fig. 27 is a sectional view taken on line 27-27 of Fig. 26; Fig. 28 is an exploded perspective view of the integrated filter oil cooler of Fig. 25; Fig. 29 is a somewhat schematic elevational view of another embodiment of an integrated filter oil cooler embodying the present invention; and Fig. 30 is an enlarged view along the line 30-30 of Fig. 29, showing an orifice plate of the assembly.

  Although the invention is often described herein by the term built-in oil cooler / filter assembly for use on a vehicle, it should be understood that this is not a limitation for the invention. This may be used in any application where a lubricating oil or a hydraulic fluid or the like needs to be cooled during operation of the system and where it is further desirable to filter the fluid. Therefore, no restriction to a particular environment of use or to a particular composition or nature of the heat exchange fluid that is cooled and filtered is provided except as expressly indicated.

  All parts of the oil cooler / filter assemblies according to the invention are usually formed of a metal, with the exception of the filter element and elastomeric seals if necessary. In general, aluminum is a preferred metal because of its high thermal conductivity, relatively low cost, light weight and solderability. This last factor ensures a robust assembly and excellent sealing of the interfaces of the various joints between parts through which a heat exchange fluid is passed. In addition, since conventional brazing operations used are tightly controlled and control of the finished product is easily achieved, the risks of manufacturing and shipping a defective product are virtually zero.

  Referring now to FIG. 1, this illustrates an embodiment of a single-pass oil cooler / filter assembly and it is seen that it includes generally cylindrical first and second tubular manifolds 2880417 12 and 12, respectively. The collectors 10 and 12 have aligned tube slots (not shown in FIG. 1) intended to receive elongated and flattened tubes 14. The ends of the flattened tubes are received in tube slots of the two collectors 10 and 12, and are brazed to form a mechanical assembly and also seal. To increase the strength, side plates 16 may be placed on both sides of the central portion and fins, usually serpentine fins 18, extend between some adjacent tubes 14 and adjacent side plates 16 nearby. sides of the central part. However, fins in the form of plates could be used if desired.

  The first manifold 10 receives, at one end thereof, an inlet tubular connector 22. The opposite end of the first manifold 10 is closed by means such as a plug, known in the art and not shown in FIG. Figure 1.

  The second collector 12 comprises an outlet connector 24 at one end 26 of this collector. The opposite end is closed by a plug as is well known.

  An elongate tubular filter housing 28 is disposed side by side with the first manifold 10 and is generally parallel thereto. The filter housing 28 is cylindrical and, in the embodiment shown in FIG. 1, it is mounted on the first collector 10 by means of two spaced apart support blocks 30 and 32. The support block 30 has a duct or inner orifice 34, one end of which is in fluid communication with the interior of the first manifold through an opening 36 in the wall of the first manifold 10 and an opening 38 in a wall of the filter housing 28.

  An elongate filter element 40, of generally cylindrical configuration and having an open center 42, is in a generally cylindrical cavity of the filter housing 28. A removable cover 44, to be described in more detail below, provides access to the inside of the filter housing 28 for the introduction and removal of the filter element 40 so that it can be changed or removed. for cleaning purposes, etc. In general, the filter element 40 is freely housed within the housing 28 when the cover 44 is not present. However, when the cover is in place, the filter element is held tightly in a predetermined position within the housing 28. Thus, the oil to be cooled and filtered can enter the assembly through the fitting. 22 to arrive at the first manifold 10 and flow into the tubes 14 to the second manifold 12 to be directed to the outlet fitting 24. In addition, the oil can pass into the conduit 34 to the inside the filter housing 28 on the radially outer side of the filter element 40. It can then pass through the filter element towards the hollow center 42 and emerge from the bottom of the filter element 40 as indicated by an arrow 46.

  A suitable seat and spacer member (not shown in Figure 1, but described in more detail below) may be placed in the lower end of the filter housing 28 so that oil enters the filter housing 28. through the orifice 38 can not go beyond the lower end of the filter 42, but must be forced through the filter 40 to the hollow center 42 thereof.

  A return tube 48 extends from the outlet fitting 24 to the filter housing 28 to empty therein at a location below the end of the filter 40 and the spacer (not shown) for join the current represented by the arrow 46. A support block 50 at the lower end of the filter housing 28 has an internal passage 52 in fluid communication with the lower end of the housing 28 and receives the combined current which is then directed to an outlet tube 54.

  The portion of the circuit extending from the first collector, through the filter housing 28, to the point where the outlet current of the conduit 48 and the filter stream represented by the arrow 46 recombine, exhibit a resistance to 'flow. The resistance is such that about 10% of the oil entering the inlet fitting 22 passes through the filter element 40 while 90% of the incoming oil thus passes into the oil cooler defined by the collectors 10, 12, the tubes 14 and the fins 18. The resistance to flow can take many forms. For example, by appropriately selecting the cross section of the passageway 34, a desired flow resistance can be achieved. Alternatively, a separate orifice could be used. In some cases, the flow resistance imposed by the filter element 40 itself is sufficient to achieve the desired dosage. In yet another embodiment, one of the tubes 14 may serve as a flow restriction. Thus, referring to a flow resistance does not mean to mean a particular structure because there are many options to achieve the desired strength, including the three mentioned above.

  FIG. 2 illustrates another embodiment of a single pass oil / filter cooler according to the invention. For the sake of brevity, the same constituents bear the same numerical references and they will not be described again.

  In the embodiment of Fig. 2, the bearing block 50 is removed and the tube 48 extends through aligned openings 56 (only one of which is shown) located in opposite parts of the housing wall 2880417 15 of the filter to extend from its opposite side to the outlet fitting 24 and to form an extension 58 which fulfills the same function as that of the outlet tube 54. An opening 60 can be cut in the portion of the duct 48 in one portion. location which will be inside the housing 28 of the filter to constitute an input means as indicated by an arrow 62 for the filtered oil passing through the filter housing 28 and through the filter element 40 that it contains (not shown in Figure 2). Thus, the streams formed of the cooled oil and the filtered oil recombine at the opening 60.

  Turning now to Figure 3, this illustrates an oil cooler / multi-pass filter assembly. In particular, the oil cooler is a two-pass unit and, for this purpose, a baffle 64 is placed midway along the length of the first manifold 10 so that oil arriving at the inlet 22 passes into an upper section 66 of the first collector 10 and then in the tubes 14 to the second collector 12. The oil then descends into the latter and returns through the tubes 14 on the lower side of the baffle 64 to a lower section 68 of the first collector 10.

  In this embodiment, the lower end of the filter housing 28 is mounted on the first collector 10 by means of a support block 70 which can be constructed substantially identically to the support block 30, ie that is, it includes an inner passage 34 in fluid communication with both the inside of the lower section 68 of the first manifold 10 and the lower portion of the filter housing 28.

  Referring now to FIG. 4, the latter shows in more detail the lower end of the housing 28 of the filter and the first manifold 10. The housing 28 of the filter is closed by a cover 72, and a seat 74 similar to 2880417. a pellet is located at a location just above the opposing openings 38 and 56 in the housing 28. The seat 74 includes a central protrusion 76 having an opening 78 provided in the hollow center 42 of the filter element 40, which serves centering the lower end of the filter element 40 within the housing and preventing short-circuiting of unfiltered oil in an annular space 80 located radially outside of the filter element 40 in the filter housing 28. Thus, a mixing chamber 81 is formed between the cover 72 and the seat 74. The cooled oil returned to the first manifold 10 through the second passage enters the space 80 through the openers. 36, 38 and in the conduit or passage 34 to mix with the filtered oil entering the chamber 80 through the opening 78 in the seat 74. The recombined oil is then returned to the system via the 56 and the housing 28 of the filter and the outlet conduit 54.

  As in all the embodiments already described and those to be described, it is preferable that a substantial major portion of the oil pass without being filtered through the oil cooler, about 10% or less of the oil is filtered before being recombined with the cooled oil. Thus, as with the embodiments of FIGS. 1 and 2, the embodiments of FIGS. 3 and 4 show a resistance to flow between the inlet of the filter housing and the outlet of the filter housing to establish the desired flow proportion.

  Other reports could be used if desired. However, for many uses, a ratio of 90/10 is desirable. For example, if the filter element 40 becomes closed or the like and an oil flow through the filter housing 28 stops or is substantially reduced, the system would still have 100% of the filter. oil and thus prevent a catastrophic failure of the equipment, especially in the case where the oil is used for lubrication purposes.

  FIG. 5 illustrates yet another embodiment of an oil cooler / multi-pass filter unit, in particular with two passages. In this embodiment, the bearing block 52 and the outlet tube 54 are removed, while the bearing block 70 with its inner conduit is maintained. The lower end of the first manifold 10 is provided with an outlet fitting 82 which is very identical to the inlet connector 22. Thus, the filtered oil passing through the filter housing 28 is recombined with the cooled oil in the lower section. 68 of the first manifold 10 and is returned to the system through the outlet fitting 82.

  FIG. 6 is an exploded view illustrating some of the details of the embodiment shown in FIG. 5 on its exit side as well as the nature of the support block 70 and the seat 74.

  FIG. 7 illustrates yet another embodiment of the invention which uses a combined support block and seat assembly 84 instead of the two bearing blocks 52 and 70 used in the embodiment of FIG. this embodiment, the support block 84 has a circular recess 86 which receives the lower end of the housing 28 of the filter. The bottom of the recess 86 acts in the manner of the seat 74 (Figure 4) and a passage 88 extends through the bottom of the recess 86 to an orifice 90 which is in fluid communication with the end. bottom 68 of the first manifold 10 as well as with the outlet tube 54. Thus, the bottom of the recess 86 acts in the manner of a seat to prevent short-circuit flow of unfiltered oil to the outlet while the filtered oil can pass through the passage 88 to the orifice 90 to mix with the cooled oil and exit from the assembly through the outlet tube 54.

  The use of the support block 84 has certain advantages over the assembly illustrated in FIG. 4 in that only one piece is necessary to fulfill the functions of the support block 50, of the support block 70 , cover 72 and seat 74. The assembly of components is significantly simplified.

  FIG. 8 illustrates another embodiment similar to that shown in FIG. 7. However, in this embodiment, a backing block 92 is used instead of the backing block 84. The backing block 92 is somewhat enlarged relative to the support block 84 and has two recesses 86 in a side-by-side arrangement so that two filter housings 28 can be put in place, approximately in parallel. Two filter elements can therefore be used and the filtration capacity can be increased. The support block 30 used in the embodiment of FIG. 7 must of course also be replaced, for example with a support block 94, which establishes a fluid communication with both the filter housings 28 and the section upper of the first collector 10.

  Although the use of support blocks such as those described above has a number of advantages for the assembly of the product, in some cases it can be relatively expensive in that a machining is necessary to form there orifices, ducts and recesses where necessary. It may also be necessary to charge solder the backup block or to load solders with other parts to be joined to these bearing blocks that would otherwise not need to be soldered into solders, thereby increasing the cost . In addition, in some assembly operations, it may be necessary to fix in the desired position by a weld spot the support block to hold it in place during a brazing operation.

  Figures 9 to 11 show a mounting means that eliminates many of these disadvantages. In particular, a relatively thin strip 100 of metal, usually aluminum, has concave sections turned in alternately opposite directions and formed by stamping, as shown in FIGS. 9 and 10. Concave sections 102 and 104 face each other. to the first manifold 10 while concave sections 106 and 108 are facing the housing 28 of the filter. The radius of curvature of the sections 102 and 104 corresponds to the outer radius of the first manifold 10 while the radius of curvature of the sections 106 and 108 corresponds to that of the housing 28 of the filter.

  The highest concave section 102 has an orifice 110 surrounded by a flange or peripheral flange 112. As best seen in Figure 11, flange 112 is sized to fit snugly in an enclosed opening 114. by a flange in the side of the first manifold 10 opposite the tubes 14. The filter housing 28 has an inlet port 116 which is itself surrounded by a flange or peripheral flange 118 sized to fit tightly into the orifice 110. A fluid communication means is thus obtained from the first collector 10, in the immediate vicinity of the inlet 22, towards the inside of the filter housing 28. The flanges 112, 115 and 188 are formed by stamping, cutting or punching.

  A separate orifice piece 119 may be placed against the flange 118 to establish the desired flow resistance, since the size of the orifices 110, 116 and the opening 114 will depend on the outer diameter of their respective flanges 112, 115 and 118 .

  For assembly, simply apply the tape-like mounting bracket to the first manifold 10 so that the flange 112 enters the opening 114, and then apply the filter housing 28 to the bracket 100 of strip-like mounting so that the flange 116 enters the hole 110. Fasteners, which can be made in one piece with the strip-like mounting bracket 100, but not shown in the drawings, can be used to snap it into place on both the first manifold 10 and the filter housing 28 for assembly during brazing.

  In the usual case, the outside of the first manifold 10 usually carries a solder coating used to form seals with the ends of the tubes 14. However, it is desirable, to minimize the cost, that the filter housing 28 is not coated with solders. To facilitate assembly, the strip-like mounting bracket 100 is coated with solder on one side only, ie the side facing the housing 28 of the filter. Thus, the solder coating on the first manifold forms a bond with the sections 102, 104 and the solder coating on the side of the mounting member 100 remote from the first manifold 10 binds to the filter housing 28 to hold it in place. square. By forming the aperture 110 and the flange 112 in the particular direction shown in the drawings, the coating solder is on the inside of the flange 112 to easily bond to the outer surface of the flange 118 surrounding the flange. orifice 116 and establish the seal against this outer surface. Similarly, the solder coating on the collector 10 will be inside the rim 115 thereof to establish a good seal and a good junction with the flange 112 on the console 100. The cost of the solder-coated parts is obviously reduced because only one side of the console 100 must be coated with solder and no solder coating whatever is necessary on the housing 28 of the filter.

  FIGS. 10, 12 and 13 also illustrate a new structure for producing the removable cover, which is also diagrammatically represented at 44. In particular, the upper end 120 of the filter housing is slightly flared towards the outside and, as it is best seen in FIG. 13, comprises an inwardly directed peripheral lip 122 of a diameter which is only slightly smaller than the inside diameter of the filter housing 28 at the flared end 120. A cover 124 similar to a plug fits tightly into the upper end of the housing 28 which itself is provided with two spaced radially inwardly spaced peripheral grooves 126 which receive sealing rings 128 to provide good sealing in this location. A C-shaped spring lockable removable ring 130 is located below the lip 112 and above the plug 124 to hold it firmly in place.

  The plug 124, on the side opposite to that of the locking ring 130, advantageously comprises a spring 134 which bears against an end piece 136 on the filter element 40 in order to push the filter element firmly downwards. 40 against the seat described previously. The end piece 136 also has a protuberance 138 which extends into the open center 42 of the filter element 40 to properly position the filter element 40 within the housing 28 and to prevent the passage short circuit of the fluid flow.

  Figure 14 illustrates another embodiment.

  In this embodiment, the filter housing is again relatively cylindrical, but includes a constricted lower end 140 which is joined to the upper end of an oil control fitting 142 which itself is mounted on the housing. upper end of the first manifold 10. The connector 142 has a port 144 to which the inlet fitting 22 can be connected. In this embodiment, the incoming oil is divided into two streams as before. A current, which constitutes substantially the largest portion of the oil, is directed in the direction of an arrow 146 inwardly of the first manifold 10 and flows in the tubes 14 to the manifold 12, then to the conduit The other current flows in the direction of an arrow 148 to the annular space between the outside of the filter element 40 and the inner wall of the filter housing 28 to finally pass through the element. with filter 40 and down into the open center 42 through an orifice conformation 150 and back to the first manifold 10. As best seen in Figure 15, the flow represented by the arrow 146 inwardly of the collector 10 and the flow represented by the arrow 148, which is passed into the housing 28 of the filter, are separated by a partition 152. The partition 152 comprises a first piece 154 which is elongated and extends downwardly from below the seat 156 for the element filter 40 into the first manifold 10 at a location between the first uppermost tube 14 and the second uppermost tube 14. For clarity, the uppermost tube 14 carries the additional numeral 158.

  The partition element 154 terminates at its lower end, as mentioned above, at a location between two tubes 14 and at this location a crosspiece 160 extends into the tube substantially in the manner of a half. baffle for sealingly applying against the interior of the manifold 10 and an end of the partition member 154. Thus, the two flows are isolated and, in this embodiment, the minimum percentage of the oil which is represented by the arrow 148 and directed through the filter housing 28 is returned through the first manifold 10 to flow through the tube 158 2880417 23 higher up to the second manifold 12 to mix with the cooled oil flowing in the other tubes 14. Thus, in this embodiment, the minor fraction of the oil, which is filtered, is also cooled by passing through the oil cooler portion of the stru and the small free flow section to the tube 158 relative to that of the other tubes 14 serves as a flow restriction for the filtered oil.

  Fig. 16 shows an alternative embodiment that achieves the same goal. In this embodiment, the two-piece partition 152 of the embodiment of FIG. 15 is replaced by a single integral partition 170 which includes a mounting end 172 secured by any means suitable for the orifice conformation 150 to its upper end, an elongate partition section 174 which extends downwardly into the first manifold 10 beyond at least the tube 158 to terminate in a cross section 176. The sides of the partition 170 are sealingly mounted on the connection 142 and on the inner wall of the first manifold 10 as well as on one end 180, if desired, the tube 158. The flat side of the tube 158 facing the housing 28 of the filter may comprise a cut portion 182 or some other source in order to allow the oil flowing in the direction of the arrow 148 to enter the tube 158 after having flowed into the filter housing 28, while being isolated from Thus, as previously, the filtered oil is also cooled in this embodiment of the invention.

  It should be noted that it is not necessary, in an embodiment in which the filter housing 28 and the first manifold 10 are disposed end to end, to return the filtered oil through the tube 158 of the filter section. tubes through the oil cooler. As schematically illustrated in FIGS. 17 and 18, the filter housing 28 may have an upper outlet connected to align with the open center 42 of the filter element 40 to receive the filtered oil and return it. to the outlet duct 48 to mix with the unfiltered oil, cooled. A connector 142 is again used for mounting the filter housing 28 on an upper end of the first manifold 10 which has a suitable oil inlet which is only shown schematically in Figures 17 and 18. In the embodiment illustrated in FIG. 17, the connector 142 is made in one piece with a dome 188 having a central protuberance 190 receivable in the open center 42 of the filter element 40 for alignment purposes. The protuberance 190 is surrounded by a seat 192 against which the filter element 40 is biased to prevent short-circuit flow. Legs 194 extend downwardly from seat 192 and are separated by openings 196 inwardly of connector 142 to allow the oil to be filtered to enter the annulus between the outside of the filter element 40 and the inner wall of the filter housing 28.

  An alternative embodiment is illustrated in Fig. 18. In this case, a spider member 198 having the central protuberance 190 and spaced branches 200 extending downwardly and directed radially outwardly is used. A seat 202 is interposed between the protuberance 190 and the branches 200, to prevent as previously flow in short circuit.

  Figure 19 shows yet another embodiment of the invention. In this case, the dome 188 is not formed in one piece with the connector 142, but in the form of a separate piece resting on a shoulder 204 on the connector 142. As before, a central protrusion is used. 190 which is surrounded by a peripheral seat 192 which itself has spaced branches 194 extending downwardly to define apertures 196 through which the oil to be filtered can enter the filter housing 28 and, in particular, in the annular space between the inside of the filter housing 28 and the outside of the filter element 40.

  Figure 20 illustrates yet another embodiment. In this embodiment, a relatively flat disk 206, which is similar to a spider, is housed on the inner side of the constricted section 140 of the filter housing 28. The disc has a central protuberance 190 surrounded by a peripheral seat 192 which leaves several spaced branches 194, generally horizontal. The branches 194 terminate with upwardly turned upward resilient feet 208 which lock against the inner wall of the housing 28.

  It should of course be recognized that the bearing and positioning constructions illustrated in FIGS. 18 to 20 are not limited to use in a construction in which the filter housing 28 and the first collector 10 are arranged end to end, but that The embodiments described above can be used in which the housing 28 of the filter and the first collector 10 are arranged side by side, approximately parallel to one another.

  It should be noted that while the embodiments specifically illustrated herein all utilize a removable cover on the upper end of the filter housing 28, it is possible to place the removable cover on the lower part of the housing of the filter. filter if desired. In addition, while the filter housing has always been illustrated here as being parallel or aligned with one of the collectors, other orientations may be provided. For example, it is possible to orient the housing 28 of the filter so that it is parallel and attached to the side pieces 16 and to the tubes 14 if desired as shown, for example, on the 2880417 26 figure 21. In the form embodiment of Figure 21, oil tubes or conduits 220 are used to direct the oil from an oil inlet connection 22 to the manifold 10 and the housing 28 of the filter, a connection 222 T for division the oil flow between the inlet manifold 10 and the housing 28 of the filter. Similarly, suitable oil pipes or tubes 224 are provided to direct the oil flow from the outlet manifold 12 and the filter housing 28, a T-connection 226 allowing the two flows to combine and be directed. to an oil outlet fitting 54.

  FIG. 22 shows another embodiment similar to that of FIG. 21, in which the filter housing 28 extends in parallel and is attached to the side pieces 16 and the tubes 14, but which differs in that the body of the housing 28 of the filter consists of a single piece, preferably an extruded part, having an internal passage 230 which extends along the length of the housing parallel to the cavity 39 for the filter 40. The passage 230 serves as a passage or conduit for oil return that replaces the conduit 224 of Figure 21, except for a conduit 232 which transfers an oil flow from the manifold 12 outlet to the housing 28 of the filter.

  FIGS. 23 and 24 and FIGS. 25 to 28 respectively show two other embodiments in which the housing 28 of the filter is mounted parallel to the tubes 14 and to the lateral piece or to the lateral pieces 16. These embodiments are similar to those of Figure 22 in that they use a one-piece body for the filter housing 28, which is preferably an extruded part and which includes a passage 230 of oil return. However, these embodiments differ from that of FIG. 22 in that they are mounted directly on the respective ends of the manifolds 10 and 12 in fluid communication with them, thereby eliminating the flow conduits 220 and 232. of Figure 22 as well as any mounting bracket for connection with a side member 16. In particular, with reference to Figures 23 and 24 and Figures 25 and 26, the filter housing 28 has an opening 236 connected to, and fluid communication with an end of the inlet manifold 10, and an opening 238 connected to and in fluid communication with an end of the outlet manifold 12. Each of the openings 236 and 238 is advantageously sized to receive an open end of the respective manifold 10 and 12 and so as to be bonded thereto, for example by brazing. In addition to eliminating the fluid conduits 220 and 232 of Fig. 22, this construction allows the removal of one of the side pieces 16. In particular, a flat surface 240, best seen in Fig. 23 extends between the openings 236 and 238, the lower vane 18 being interposed between the surface 240 and the lowest tube 14. Although this construction is preferred, it may still be advantageous in some embodiments to include a side piece 16 which is placed between the surface 240 and the fin 18, slightly spaced from the surface 240.

  The embodiment of Figures 23 and 24 differs from the embodiment of Figures 25 and 26 in that the central axis 242 for the filter element 40 and its cavity 39 in Figures 23 and 24 is offset from the axes. 244 and 246 collectors 10 and 12 so that the housing 28 of the filter does not extend beyond a plane (shown schematically by a dashed line 248 in Figure 24) which is the plane most located backward or forwardmost of the oil cooler. This allows the assembly of other parts or a structure in the immediate vicinity of the plane 248 whereas, in the embodiment of FIGS. 25 and 26, the central axis 242 is aligned with the axes 244 and 246 of the collectors 10 and 12, 2880417 28 which results in the housing 28 of the filter extending beyond the plane 248.

  The details of the filter housing 28 and associated parts will be described with reference to Figs. 27 and 28 for the two embodiments shown in Figs. 23 and 24 and Figs. 25 and 26. Parts include a cover 250 with inlet tube, a flow-restricting cover 252 / filter seat, a filter element 40, a filter seat / seal ring holder 254, a compression spring 256 (advantageously a helical spring of compression), a spring / seal seat cover 258 and a retaining ring 260.

  The cover 250 has an opening 262 for receiving an end of the inlet tube 22 and which is connected thereto, for example by brazing. The cover 252 has a filter seat surface 264 that bears against an end surface of the filter 40, and a tip 266 that extends into the central opening 42 of the filter 40 to position the filter 40 relative to the cover 252. and the housing 28 of the filter. The lid 252 also has an opening 267 which receives a portion of the lid 250 so that the two parts can be bonded to each other, for example by brazing. The cover 252 further includes a radially extending flange 268 which engages an end surface of the filter housing 28 to be bonded thereto, for example by brazing, and a plurality of flow restrictors in the form of orifices 270 located therein. in an annular sidewall extending between the surface 264 and the flange 268.

  The filter seat / seal ring holder 254 has a surface 272 which bears against another end of the filter 40, and a tip 274 which is received in the central opening 42 of the filter 40 to position the filter 40 relative to the 254 filter seat / seal ring and filter housing 28. The filter seat / seal ring seat 254 further has an annular groove 276 which receives an O-ring seal 278 which contacts a cylindrical sidewall 280 of the cavity 39 to limit or prevent leakage. of oil between the cylindrical surface 280 and the filter seat / seal ring holder 254. The carrier 254 further includes a spring seat 282 which is received in the inner diameter of the spring 256 to position the spring 256 relative to the filter seat / seal ring holder 254. It will be appreciated that the spring seat 282 may be in the form of an annular wall which receives an outer diameter of the spring 256 to position the spring 256 relative to the filter seat / seal ring holder 254. A flow throttle, in the form of a cylindrical orifice 283, extends through the tip 274 and the spring seat 282 of the holder 254 to further regulate the flow passing through the filter 40 to obtain the desired splitting of the oil flow, preferably with 10% or less filtered oil before recombining with the cooled oil.

  The cover 258 includes an annular spring seat 284 which receives the outer diameter of the spring 256 to position the spring 256 relative to the cover 258 and the filter housing 28. It should be understood that the spring seat 284 could be an annular tip similar to the seat 282 so as to be received in the inner diameter of the spring 256 to position it. The cover 258 also has an annular groove 286 which receives a sealing ring 288 which seals in contact with the cylindrical surface 280 to prevent oil from leaking from the filter housing 28.

  The snap ring 260 is received in a groove 290 which is intended for it, formed in the surface 280 of the filter housing 28 to retain the filter 40, the filter seat / seal ring holder 254, the 2880417 spring 256 and the cover 258 in the filter housing 28, with the spring 256 in a loaded and compressed state for forcing the filter seat / seal ring holder 254 to fit the filter 40 and for applying the filter forcefully 40 against the cover 252.

  Referring to Fig. 27, the filter housing 28 has a transverse hole 292 which communicates the passage 230 with the cavity 39. In the illustrated embodiment, the transverse hole 292 is machined, for example by drilling, from the outside the housing 28 of the filter so as to extend through the passage 230 into the cavity 39, and it will require the presence of a closure cap 294 which can be adjusted by force and / or bonded, for example by brazing, to the inside diameter of the hole 292. A similar cap 296 is provided in the end of the passage 230 to close it.

  The outlet tube 54 is connected through the cover 252 to the end of the filter housing 28 opposite that of the plug 296. The tube is received in an opening 295 formed in the rim 268 of the cover 252. In this regard an annular support flange 298 which receives the tube 54 may be provided as an integral part with the cover 252, as shown in Fig. 27, or as a separate part which is connected, for example by brazing, to the lid 252, as shown in FIG.

  The flow regime of the oil will be explained with reference to FIG. 27. The oil is directed from the inlet fitting 22 into an annular cavity 300 formed between the covers 250 and 252, and is directed in passing. by the flow throttles 270 from the chamber 300 into the filter cavity 39 and into the manifold 10. In this regard, an orifice 270A, which is larger and constricts the flow less than the other orifices 270 , may be aligned with the interior of the manifold 10 if this is necessary to achieve the desired proportional division between the oil flow directed into the tubes 14 and the oil flow directed through the filter 40. illustrated by the shaded arrows A in Fig. 27, which show an oil cooling flow path, a portion of the oil flow and, as described for all previous embodiments, preferably the most of the oil flow is directed inwardly of the manifold 12 through the tubes 14, from the inside of the manifold 10, the remaining portion of the oil flow (preferably 10% or less than the total flow of oil) passing through the filter 40 and then into the port 283 of the filter seat / seal ring holder 254, as indicated by the shaded arrows B in Fig. 27 which represent a path Oil filtration flow. The two flows are combined in a chamber 302 defined between the filter seat / seal ring holder 254 and the cover 258, and is directed therethrough 230 through the transverse hole 292. The oil flow combined is then directed to the outer fitting 54 through the passage 230.

  Figures 29 and 30 show yet another embodiment of the invention. This embodiment differs from the previously described embodiments in that the oil inlet fitting 22 delivers the entire oil flow to the filter housing 28 rather than delivering a portion of the flow. oil to the filter housing 28 and the large remaining portion of the oil flow delivered to the oil cooler as in the previously described embodiments.

  The filter housing 28 defines a bypass path of the oil filter, shown schematically by arrows 304, which, in the illustrated embodiment, is defined by an annular gap between the outer diameter of the filter element. 40 and the inside diameter of the housing 28. An oil filtering flow path is also provided, which is schematically represented by lines 306, in which path a small percentage of the oil passes through the filter as in the previous embodiments. The distribution according to the desired percentages between the two flow paths is advantageously achieved, at least in part, by at least one flow throttling element which, in the illustrated embodiment, is an orifice plate 308 located in downstream at an outlet end of the filter. The plate 308 has an opening 310 for the oil flowing through the filter 40 and a plurality of flow control orifices 312 for the oil which bypasses the filter 40, the number and dimensions of the orifices 312 controlling, at less in part, the percentage distribution between the two oil spills. The opening 310 advantageously corresponds, in dimension, to the open center 42 of the filter element 40. The two oil flows then meet in the housing 28 of the filter downstream of the plate 308 and are directed towards the one collectors 10, 12 by a conduit or a suitable connection, shown schematically at 314. It should be noted that any of the mounting configurations for the filter housing 28 on the remaining portion of the oil cooler shown in the forms The foregoing embodiment may be readily adapted to the embodiment shown in FIGS. 29 and 30. It will be further understood that the heat exchanger of FIGS. 29 and 30 may be single-pass or multi-pass.

  Although the tubes 14 are illustrated in the form of flattened tubes and the vanes 18 are shown as serpentine fins, it is to be understood that in some applications it may be desirable for the tubes 14 to be provided under the form of serpentine fins. other suitable forms such as, for example, round tubes, and / or that the fins 18 are provided in other suitable forms such as, for example, flat vanes which extend transversely to the longitudinal extent of the tubes 14, the tubes being inserted through the fins.

  It will be appreciated from the foregoing that an integrated oil cooler / filter assembly according to the invention achieves the objectives for which it is intended. This set is of a small footprint and a relatively small volume, making it suitable for various uses, including uses on vehicles where space is of paramount importance. In addition, the integral construction, advantageously by soldering, provides a means of eliminating possible leak points and other product defects due to the possibility of achieving it under the same tightly controlled conditions. Since a large number of parts of an oil cooling system are incorporated in an integrated construction, the risk of incorrect installation in the system is reduced.

  Various specific aspects described above minimize the cost of the assembly in a variety of ways, resulting in an inexpensive, safe, low volume oil cooler with integrated filter.

  It goes without saying that many modifications can be made to the oil cooler described and shown without departing from the scope of the invention.

Claims (55)

  1. Integrated filter oil cooler, characterized in that it comprises: first and second elongate tubular collectors 5 (10, 12) arranged parallel to one another and at a distance from one another ; tube slots in each of the manifolds, the tube slots of the first manifold facing and aligning with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; an oil inlet (22) to one of the manifolds; an oil outlet (24) from one of the manifolds; collectors, fins and tubes defining an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet; a filter housing (28) mounted on one of the collectors; an oil filter element (40) positioned with the housing; an inlet to the housing in fluid communication with the oil inlet; an outlet of the housing for supplying filtered oil to be combined with oil flowing in or out of the oil cooling flow path; and a flow throttle downstream of the oil inlet for causing a major substantial portion of the oil introduced into the oil inlet to bypass the filter housing and to flow substantially directly through the filter housing. the oil coolant flow path, only a small minor portion of oil introduced into the oil inlet flowing through the oil filter element.   2. Integrated filter oil cooler according to claim 1, characterized in that the tubes are flattened tubes.   An integrated filter oil cooler according to claim 1, characterized in that the filter housing is elongated and tubular and is mounted on one of the manifolds in a generally parallel and side-by-side arrangement with respect thereto.   An integrated filter oil cooler according to claim 3, characterized in that the oil inlet is an orifice in the first manifold, and a conduit connects the first manifold to the inlet of the filter housing.   An integrated filter oil cooler according to claim 3, characterized in that the oil inlet is an orifice connected to the first manifold, the filter housing is mounted on the first manifold with two spaced apart blocks. (30, 32), one near each end or at each end of the filter housing, one of the mounting blocks having a fluid passage (34) connecting the first manifold to the input of the housing .   An integrated filter oil cooler according to claim 5, characterized in that the oil cooling flow path terminates in the oil outlet itself located in the first manifold remote from the inlet. of oil and the other of the mounting blocks comprises an outlet conduit connected to both the oil outlet and the housing outlet, and an outlet port in fluid communication with the outlet conduit.   An integrated filter oil cooler according to claim 6, characterized in that the outlet port is in the housing.   An integrated filter oil cooler according to claim 6, characterized in that the outlet port is in the first manifold in close proximity to said conduit.   An integrated filter oil cooler according to claim 6, characterized in that the outlet port 10 is in said other mounting block (70).   An integrated filter oil cooler according to claim 6, characterized in that the oil coolant flow path is a multi-passage flow path and comprises a partition (152) in the first manifold between oil inlet and oil outlet.   An integrated filter oil cooler according to claim 5, characterized in that the oil outlet is in the second manifold; an oil conduit (48) extends from the oil outlet to the filter housing and is in fluid communication with the housing outlet and an oil outlet port in the filter housing in communication with the filter housing. fluid with the conduit and the outlet of the housing.   12. Integrated filter oil cooler according to claim 11, characterized in that the oil duct is generally parallel to the tubes.   An integrated filter oil cooler according to claim 1, characterized in that the filter housing has an open end through which the filter element can be introduced into or removed from the housing, and a removable cover for closing and sealing the open end, an inner surface of this open end having a peripheral groove extending radially inwardly and a removable, spring-loaded retaining ring being located in the groove and being in abutment against the lid, opposite the filter element, for removably retaining the lid in the open end.   14. Integrated filter oil cooler according to claim 13, characterized in that the cover comprises a side wall provided with at least one groove opening radially outwards, and a sealing ring disposed in the groove. to make waterproof contact with the filter housing.   15. Integrated filter oil cooler, characterized in that it comprises: first and second elongate tubular collectors (10, 12) parallel and spaced apart from each other; tube slots in each of the manifolds, the tube slots in the first manifold facing and aligning with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; An oil inlet (22) to one of the manifolds; an oil outlet (24) from one of the manifolds; the collectors, fins and tubes defining an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet a filter housing (28) mounted on the cooler of oil an oil filter element (40) positioned with the housing an inlet to the housing in fluid communication with the oil inlet; an outlet of the housing for supplying filtered oil to be combined with oil flowing in or out of the oil cooling flow path; a flow throttle downstream of the oil inlet for causing a major substantial portion of oil introduced into the oil inlet to bypass the filter housing and to flow substantially directly into the flow path; oil cooling flow, only a small minor portion of oil introduced into the oil inlet flowing through the oil filter element; and wherein the constriction comprises a first of said elongate tubes.   An integrated filter oil cooler according to claim 15, characterized in that the oil inlet is connected to the first manifold and the housing inlet is in fluid communication with the first manifold, and further comprising a transfer passage extending between said first tube and the filter housing at a location downstream of the filter element.   An integrated filter oil cooler according to claim 16, characterized in that the transfer passage is defined by a flow orientation element in the first manifold extending to said location and isolating a flow of oil in said first manifold of an oil flow from said location to said first tube.   The integrated filter oil cooler of claim 17, characterized in that the constriction further comprises an orifice at or near said location.   The integrated filter oil cooler of claim 16, characterized in that the constriction further comprises an orifice at or near said location.   20. An integrated filter oil cooler, characterized in that it comprises: first and second elongated tubular collectors (10, 12) parallel and spaced apart; tube slots in each of the manifolds, the tube slots of the first manifold facing and aligning with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; an oil inlet (22) to one of the manifolds; an oil outlet (24) from one of the manifolds; the collectors, fins and tubes defining an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet a filter housing (28) mounted on the cooler of oil an oil filter element (40) positioned with the housing an inlet to the housing in fluid communication with the oil inlet; an outlet of the housing for supplying filtered oil to be combined with oil flowing in or out of the oil cooling flow path; a flow throttle downstream of the oil inlet for causing a substantial major portion of the oil introduced into the oil inlet to bypass the filter housing and flow substantially directly into the flow path; oil cooling flow, only a small minor portion of oil introduced into the oil inlet flowing through the oil filter element; and wherein the filter housing is mounted end-to-end on the first manifold.   An integrated filter oil cooler according to claim 20, characterized in that the constriction comprises a first (158) elongate tube.   An integrated filter oil cooler according to claim 21, characterized in that the oil inlet is connected to the first manifold and the housing inlet is in fluid communication with the first manifold, and further comprising a transfer passage extending between the first tube and the filter housing at a location downstream of the filter element.   An integrated filter oil cooler according to claim 22, characterized in that the transfer passage is defined by a flow orientation element in the first manifold extending to said location and isolating a flow of oil in the first manifold of an oil flow from said location to said first tube.   An integrated filter oil cooler according to claim 23, characterized in that the constriction further comprises an orifice at or near said location.   An integrated filter oil cooler according to claim 20, characterized in that the transfer passage is defined by a partition (152) extending from the filter housing into the first manifold, generally in the middle to a second location beyond the first tube and terminating in a sealed cross-section within the manifold at said second location and between said first tube and other said tubes.   An integrated filter oil cooler according to claim 25, characterized in that the cross-section is a baffle (64) disposed in a wall of the manifold at said location and in contact with the partition to which it is sealed.   An integrated filter oil cooler according to claim 25, characterized in that the partition and the cross section are formed in one piece.   An integrated filter oil cooler according to claim 25, characterized in that the partition and an adjacent end of the first tube are spaced from each other.   An integrated filter oil cooler according to claim 25, characterized in that the partition bears against an adjacent end of the first tube, and a side of the first tube facing the filter housing at said adjacent end presents an orifice conformation to allow oil to enter from the filter housing into said first tube.   30. Integrated filter oil cooler, characterized in that it comprises: first and second elongated tubular collectors (10, 12) parallel and spaced apart; tube slots in each of the manifolds, the tube slots of the first manifold facing and aligning with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; an oil inlet (22) to one of the manifolds; an oil outlet (24) from one of the manifolds; the collectors, fins and tubes defining an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet a filter housing (28) mounted on the oil cooler an oil filter element (40) positioned with the housing an inlet to the housing in fluid communication with the oil inlet; an outlet of said housing for supplying filtered oil to be combined with oil flowing in or out of the oil cooling flow path; a flow throttle downstream of the oil inlet for causing a major substantial portion of oil introduced into the oil inlet to bypass the filter housing and to flow substantially directly into the flow path; oil cooling flow, only a small minor portion of oil introduced into the oil inlet flowing through the oil filter element; and wherein the filter housing is mounted to the first manifold in an end-to-end arrangement by means of a connector (142) connected to an upper end of the first manifold and to the filter housing.   An integrated filter oil cooler according to claim 30, characterized in that it further comprises a dome-like member (188) extending from the connector into the filter housing at the lower end of the filter housing. the latter, the dome-like element having an upper centering protrusion (190) adapted to be inserted and centered in the lower end of a central passage (42) of the oil filter element, and a seat (192) surrounding the protuberance, and a perforated skirt (194) surrounding this seat and extending downwardly thereof.   An integrated filter oil cooler according to claim 31, characterized in that the dome-like member is a separate member mounted on the connector.   The integrated filter oil cooler of claim 31, characterized in that the dome-like member is integrally formed on an upper end of the fitting.   34. An integrated filter oil cooler according to claim 30, characterized in that it further comprises a spider-like disc (198) placed in a lower end of the filter housing, the disc having a central protuberance (190). ) extending upwardly to be received in a lower end of a central passage (42) of the oil filter element, a seat (202) surrounding the protuberance and branches (200) extending towards the outside from the seat to an inside wall of the filter housing.   35. Integrated filter oil cooler according to claim 34, characterized in that the branches extend radially outwards.   36. An integrated filter oil cooler according to claim 35, characterized in that the branches also extend downwards.   37. An integrated filter oil cooler, characterized in that it comprises: elongated first and second elongate tubular collectors (10, 12) spaced apart; tube slots in each of the manifolds, the tube slots of the first manifold facing and aligning with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; Fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; an oil inlet (22) to one of the manifolds; an oil outlet (24) from one of the manifolds; collectors, fins and tubes defining an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet a filter housing (28) mounted on the cooler 10 of oil an oil filter element (40) positioned with the housing an inlet to the housing in fluid communication with the oil inlet; an outlet of the housing for supplying filtered oil to be combined with oil flowing in or out of the oil cooling flow path; a flow throttle downstream of the oil inlet for causing a major substantial portion of oil introduced into the oil inlet to bypass the filter housing and to flow substantially directly through the flow path; oil cooling flow, only a small minor portion of oil introduced into the oil inlet flowing through the oil filter element; and wherein the first manifold and the filter housing are generally cylindrical and are disposed side by side, substantially parallel to one another, and a strip-like mounting bracket (100) being used for mounting from the filter housing to the first manifold, the mounting bracket having alternating concave sections (102, 104, 106, 108) along its length, some facing the filter housing they receive and others facing the first collector they receive, and a connecting material connecting the concave section to that of the filter housing and the first collector, which it faces and receives.   38. An integrated filter oil cooler according to claim 37, characterized in that the first manifold, the mounting bracket and the filter housing are of metal and the bonding material is a solder coating on the first manifold and on one side of the mounting bracket facing the filter housing.   39. An integrated filter oil cooler according to claim 37, characterized in that one of the concave sections facing the first manifold has a first orifice (110) surrounded by a first flange (112), said first flange being received tightly in and aligned with an aligned opening (114) of the first manifold, and a second port (116) in the filter housing aligned with the first port and surrounded by a second flange (118) tightly received and sealed in the first orifice.   40. An integrated filter oil cooler according to claim 37, characterized in that one of the concave sections facing the first manifold has a first orifice (110) surrounded by a first flange (112), the first flange being received tightly in an aligned opening (114) of the first manifold and sealed thereto, and a second port (116) in the filter housing aligned with the first port and surrounded by a second flange (118) tightly received and sealed in the first port , the seal being made by the solder coating on the first manifold and on the side of the mounting bracket.   41. An integrated filter oil cooler, characterized in that it comprises: an oil inlet (22); an oil outlet (24); first and second elongated tubular collectors (10, 12) parallel and spaced apart; tube slots in each of the manifolds, the tube slots of the first manifold facing and aligning with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; collectors, fins and tubes defining an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet; a filter housing (28) mounted on the oil cooler in an arrangement generally parallel to said tubes, the filter housing being mounted to all the manifolds and / or a component (16) of the oil cooler; extending between the manifolds, the filter housing defining an oil filtering flow path between the oil inlet and the oil outlet; an oil filter element (40) positioned within the housing in the oil filtration flow path; and at least one flow restriction placed downstream of the oil inlet to cause a major substantial portion of oil introduced into the oil inlet to bypass the filter housing and flow substantially directly into the oil inlet. oil cooling flow path, only a small minor portion of oil introduced into the oil inlet flowing through the oil filter element.   42. An integrated filter oil cooler according to claim 41, characterized in that the filter housing comprises a chamber for receiving the oil filter element and an oil return passage (230). extending parallel to the chamber between the oil filtration flow path and the oil outlet.   43. An integrated filter oil cooler according to claim 42, characterized in that it further comprises a tube extending between a downstream opening in the filter housing and a downstream opening in one of the manifolds, and another tube extending from the oil inlet to the filter housing for directing said small minor portion of oil thereinto.   44. An integrated filter oil cooler according to claim 43, characterized in that the filter housing is mounted on the component, and the latter comprises a side member (16) extending parallel to the tubes.   45. An integrated filter oil cooler according to claim 42, characterized in that the filter housing is mounted directly on each of the manifolds.   An integrated filter oil cooler according to claim 45, characterized in that an open end of one of the manifolds is connected directly to an opening of the filter housing, and an open end of the other of the collectors is connected directly to another opening in the filter housing.   47. An integrated filter oil cooler according to claim 42, characterized in that the filter housing comprises an extruded aluminum part, and the chamber and the oil return passage are formed in the extruded aluminum part.   48. An integrated filter oil cooler as claimed in claim 41, characterized in that the at least one flow restriction includes an orifice located adjacent a downstream end of the filter housing.   49. An integrated filter oil cooler as claimed in claim 41, characterized in that the filter housing is mounted on the component, and the component 2880417 48 includes a side member extending parallel to the tubes.   50. An integrated filter oil cooler according to claim 41, characterized in that the filter housing is mounted directly on each of the manifolds.   51. An integrated filter oil cooler, characterized in that it comprises: an oil inlet (22); an oil outlet (24); first and second elongated tubular collectors (10, 12) parallel and spaced apart; tube slots in each of the manifolds, the tube slots of the first manifold facing and aligned with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; collectors, fins and tubes defining an oil cooler having an oil cooling flow path between the oil inlet and the oil outlet; a filter housing (28) mounted on the oil cooler substantially parallel to the tubes, the filter housing being mounted on all of the two manifolds, and defining an oil filter flow path between the oil inlet and oil outlet; an oil filter element (40) positioned within the housing in the oil filtration flow path; and at least one flow restriction placed downstream of the oil inlet to cause a substantial portion of oil introduced into the oil inlet to bypass the filter housing and flow substantially directly by the oil coolant flow path, only a small minor portion of oil introduced into the oil inlet flowing through said oil filter element.   52. An integrated filter oil cooler according to claim 51, characterized in that the filter housing comprises a chamber (39) for receiving the oil filter element and an oil return passage (230). extending parallel to the chamber between the oil filtering flow path and the oil outlet.   53. An integrated filter oil cooler according to claim 52, characterized in that the filter housing comprises an extruded aluminum part and the chamber and the oil return passage are formed in the extruded aluminum part. 54. An integrated filter oil cooler according to claim 51,   characterized in that an open end of one of the manifolds is connected directly to an opening of the filter housing, and an open end of the other of the manifolds is connected directly to another opening of the filter housing.   55. An integrated filter oil cooler according to claim 51, characterized in that the at least one flow restriction comprises an orifice located adjacent a downstream end of the filter housing.   56. An integrated filter oil cooler, characterized in that it comprises: an oil inlet (22); an oil outlet (24); first and second elongated tubular collectors (10, 12) parallel and spaced apart; Tube slots in each of the manifolds, the tube slots of the first manifold facing and aligned with the tube slots of the second manifold; elongated tubes (14) having their ends in some aligned with, and sealed to, tube slots of the first and second manifolds and extending between the manifolds for establishing fluid communication therebetween; fins (18) extending at least between adjacent tubes and in thermal conduction relationship therewith; collectors, fins and tubes defining an oil cooler having an oil coolant flow path between the oil inlet and the oil outlet; a filter housing (28) mounted on the oil cooler, the filter housing defining an oil filter flow path between the oil inlet and at least one of the first and second manifolds, and a flow path bypassing the oil filter between the oil inlet and said at least one of the first and second collectors; an oil filter member (40) positioned within the filter housing in the oil filtration flow path; and at least one flow throttling element in the filter housing for causing a major substantial portion of oil introduced into the oil inlet to bypass the oil filter element by flowing through the flow path. the oil filter bypass flow, only a small minor portion of oil introduced into the oil inlet flowing through the oil filter element through the oil filter flow path .   57. An integrated filter oil cooler according to claim 56, characterized in that said at least one flow throttling element comprises an orifice plate, said orifice plate having at least one orifice in the path flow bypassing the oil filter.   58. An integrated filter oil cooler according to claim 57, characterized in that the orifice plate is located downstream of the oil filter element.